* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}
ul,
ol {
  list-style: none;
}
img {
  min-width: 100%;
}
.fl {
  float: left;
}
.fr {
  float: right;
}
clearfix::after {
  content: '';
  display: block;
  clear: both;
}

.container {
  width: 70vw;
  background-color: lightblue;
  margin: 0 auto;
}
.container .leftarea {
  width: 30vw;
}
.container .leftarea .checkimgcontainer {
  width: 30vw;
  height: 30vw;
}

.container .leftarea .imglist {
  margin-top: 20px;
  width: 100%;
  height: 100px;
  background-color: blueviolet;
}
.container .rightarea {
  width: 30vw;
  height: 30vw;

  background-color: rgb(0, 17, 255);
}
